221631075

素因数分解:

$3^2\times 5^2\times {\mathrm{985027}}^1$

素因数の和:985043

約数の個数: 18

約数和(自身を含む): 396966284

約数和(自身を除く): 175335209

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 985027, 2955081, 4925135, 8865243, 14775405, 24625675, 44326215, 73877025, 221631075]

約数ペア:

[(1, 221631075), (3, 73877025), (5, 44326215), (9, 24625675), (15, 14775405), (25, 8865243), (45, 4925135), (75, 2955081), (225, 985027)]